Need help to identify prop

[Ed58]

I got some props in a box of parts. Not able to identify one of them. There are no numbers on it. It does not have any splines or holes to be a pin drive etc. The closest thing I found in my reasearch was a K-15 Michigan, that was suppose to fit a 6HP 40-47 Merc. Attached pics. Thanks in advance.

 

[Frank Acampora]

Re: Need help to identify prop

Well, look at the rear of the prop. There is a slot to accept a shear pin. This would be for an older smaller engine like a Scott or McCulloch, or even some older 'Rudes with the shear pin at the rear (or front depending upon your perspective) of the prop shaft--nearest the geargase. The propnut holds the prop hard against the shear pin. They could get away with this on those older engines but the hole in the propshaft weakens it where it exits the gearcase so no modern engine will have this design.